Wei Wang, Shenzhen CN

Wei Wang, Shenzhen CN

Patent application number

Description

Published

20080247559

ELECTRICITY ECHO CANCELLATION DEVICE AND METHOD - An electricity echo cancellation device applied at a terminal includes: an input buffer memory module, a network echo delay computation module and an adaptive filtering module. The adaptive filtering module includes an adaptive filter, a subtracter and a dual-ended voice detection module. An electricity echo cancellation method includes: calculating a network echo delay according to relevant information of an RTCP packet transmitted from the network; and dynamically adjusting a terminal input signal to be adaptively filtered according to the network echo delay. The present invention ensures the electricity echo cancellation effect at the final user end on the whole, and improves the effectiveness of electricity echo cancellation. Meanwhile method of the present invention can be realized with software, thus avoiding influences of hardware memory restricts on the echo cancellation effect. In addition, the present invention only needs a single-point deployment, and thus the cost is saved.

10-09-2008

20080259788

Method For Routing Mobile Node In Wireless Mesh Network And A Communication System Thereof - A wireless mesh network includes several mesh networks and the wireless mesh network access points to which the mesh networks belong. A method establishing backbone routing and network tolopogy among each wireless mesh network access points, selecting one said wireless mesh network access point as a location inquiry sever for all the mesh networks, and acquiring the corresponding relations between all the mesh networks in the wireless mesh network and the wireless mesh network access points to which the mesh networks belong. When said mesh network needs to transmit data, the access point inquires the location inquiry server for the wireless mesh network access point which the destination mesh network belongs to, and performs routing based on the network topology.

10-23-2008

20090003806

Method and circuit for controlling rotation speed of computer fan - An exemplary method for controlling rotation speed of a computer fan includes: judging the type of a fan by comparing two rotation speeds detected before and after changing a duty cycle of a PWM signal respectively; controlling the computer fan as a 4-pin fan the PWM signals if the rotation speeds are different; and controlling the computer fan as a 3-pin fan via voltage signals converted from the PWM signals if the rotation speeds are equal. And an exemplary circuit for controlling rotation speed of a computer fan is capable of controlling rotation speed of the 4-pin fan via PWM signals, and controlling rotation peed of the 3-pin fan via voltage signals converted from PWM signals.

01-01-2009

20090158059

VOLTAGE REGULATING CIRCUIT FOR MOTHERBOARD - An exemplary voltage regulating circuit for a motherboard includes a selecting switch and a first switch module, the selecting switch comprising a first input terminal arranged to receive a standby power provided by a power supply, a first control terminal arranged to receive a state signal from the motherboard via a first switch module controlled by a power good signal generated by the power supply, and an output terminal, wherein, when the motherboard is turned off, the state signal is at a high level and the first switch module is turned on by the power good signal for turning off the selecting switch to stop outputting the standby power.

06-18-2009

20090287699

METHOD, DEVICE AND SYSTEM FOR QUALITY CHECK - An embodiment of the present invention discloses a quality check (QC) method, including: determining a QC object to be checked and its QC content; searching a system where QC data needed for the QC is located, according to the determined QC object and its QC content, and obtaining the corresponding QC data from the system; and computing QC result according to the obtained QC data. With the QC method, it may perform a uniform hierarchical QC on service representatives in different systems and QC results can be stored uniformly in the same database, which facilitates query, statistics and analysis of the QC results. An embodiment of the present invention also discloses a QC system including a database and QC device. The QC device includes a user input unit and a master control unit.

11-19-2009

20100231608

DISPLAY DEVICE WITH ORIENTATION RECOGNITION UNIT - An exemplary display device includes a display panel, an orientation recognition unit and a directional detection circuit. The display panel is used to display images. The orientation recognition unit is used to determine an angle of rotation of the display panel and generates a corresponding direction detection signal. The directional detection circuit is used to adjust an orientation of one or more images displayed by the display panel according to the direction detection signal.

09-16-2010

20100242962

ANESTHETIC VAPORIZER - An anesthetic vaporizer is disclosed herein which comprises a fresh gas inlet, a mixed gas outlet, a first gas branch circuit, a second gas branch circuit and a vaporizing chamber. The vaporizing chamber has a reservoir for containing an anesthetic agent. The first gas branch circuit connects the fresh gas inlet and the mixed gas outlet. The second gas branch circuit comprises a first pneumatic circuit, a pressure compensation unit, a second pneumatic circuit, a wick unit and a third pneumatic circuit. The pressure compensation unit has a curved, continuous and sealed vent slot. The wick unit has an immersion portion which is directly contacted with the anesthetic agent in the reservoir. The fresh gas inlet, the first pneumatic circuit, the vent slot, the second pneumatic circuit, the wick unit, the third pneumatic circuit and the mixed gas outlet are sequentially connected with one another. The pressure compensation unit is provided in the reservoir and has a heat conductor which is directly contacted with the anesthetic agent to transfer heat. The vent slot is formed in the heat conductor. The anesthetic vaporizer according to the invention can stabilize the concentration of the anesthetic vapor in the outputted mixed gas.

09-30-2010

20110153586

MOBILE SEARCH METHOD AND SYSTEM, AND SEARCH SERVER - A mobile search method and system are provided. The method includes the following steps. receiving, by a local search server, a first search request sent by a client, wherein the first search request carries a search keyword; acquiring a member search engine by selecting from a meta index stored locally according to the search keyword, wherein the meta index stored locally comprises a meta index of the local search server and meta indexes of other search servers; searching a search server at which the member search engine is located; and when the search server at which the member search engine is located is not a local search engine, sending a second search request to the search server at which the member search engine is located, wherein the second search request comprises the search keyword; receiving a search result that is returned by the search server at which the member search engine is located according to the search keyword; and sending the search result to the client.

LED lamp - An LED lamp includes a housing comprising a receptacle, first and second bossed holes in the receptacle, each bossed hole having internal threads, and a cover plate including parallel ribs projecting outward, and holes, the cover plate being secured to the receptacle by driving threaded fasteners therethrough into the second bossed holes; two opposite shoulders each formed lengthwise along a central line of an inner surface of either side of the receptacle; a PCB supported by the shoulder and the first bossed holes, the PCB being fastened in the receptacle by driving threaded fasteners therethrough into the first bossed holes; rows of units of LEDs electrically connected to the PCB wherein each row of units of LEDs is parallel to and adjacent the rib; and a waterproofing member in the housing for protecting the PCB. The LED lamp is shallow.

07-21-2011

20110176311

LED lighting device - An LED lighting device includes a receptacle comprising first and second bossed holes each having internal threads, and two opposite shoulders each formed lengthwise along a central line of an inner surface of either side of the receptacle; a cover plate comprising apertures and threadedly secured to the receptacle to form a housing; PCBs each supported by the shoulder and the first bossed holes and fastened in the receptacle by driving threaded fasteners therethrough into the first bossed holes; parallel elongated members each with the housing mounted thereon; units of LEDs electrically connected to the PCB wherein each unit of LEDs is fastened in the aperture; a waterproofing member filled in the housing for protecting the PCB; longitudinal and transverse frame members mounted on one surfaces of the elongated members; and a panel box mounted on the frame members, the panel box being electrically connected to the PCBs.

07-21-2011

20110261788

METHOD FOR VIRTUAL CONNECTION RELEASING IN INTER-OPERATING NETWORK - The present invention provides a virtual connection releasing method in an inter-operation network. In the inter-operation network between the Enhanced Universal Terrestrial Radio Access Network (E-UTRAN) and the evolved HRPD (eHRPD) Access Network, a PMIP indication is set for indicating whether the HRPD Serving Gateway HSGW needs to initiate the Proxy Mobile IP (PMIP) binding updating operation or not. When the virtual connection releasing is initiated, the evolved Access Network (eAN) sends the A

METHOD, APPARATUS AND SYSTEM FOR CONTROLLING SELF-OPTIMIZATION SWITCH - Embodiments of the present invention disclose a method, an apparatus, and a system for controlling a self-optimization switch. By using technical solutions provided in embodiments of the present invention, enabling and disabling of self-optimization can be controlled, and a state of the self-optimization switch can be obtained. A technical solution provided in embodiments of the present invention is as follows: A method for controlling a self-optimization switch includes: obtaining a target state of a self-optimization switch; and sending a setting command that includes the target state to a managed unit, where the setting command instructs the managed unit to change the state of the self-optimization switch to the target state.

01-12-2012

20120011231

METHOD, APPARATUS, AND SYSTEM FOR CONTROLLING EXECUTION OF AN AUTOMATIC PROCESS - The present invention discloses a method for controlling execution of an automatic process. The method includes: receiving a resume command that carries stoppoint information; determining whether the stoppoint information carried in the resume command is the same as information about a current stoppoint of a current automatic process; and resuming the current automatic process from the current stoppoint when the stoppoint information carried in the resume command is the same as the information about the current stoppoint. The present invention also discloses another method for controlling execution of an automatic process, a system, a management apparatus, an automatic apparatus, a computer program product, and a computer readable storage medium, ensuring that the automatic process is executed in accordance with user expectations.

01-12-2012

20120078872

METHOD, SEARCH SERVER, AND SYSTEM FOR MOBILE SEARCH INTERFACE ADAPTATION - A method, a search server, and a system for mobile search interface adaptation are provided. The method for query interface adaptation for mobile search includes: receiving a search request represented by a global query interface schema; according to a mapping relationship between an attribute in the global query interface schema and an attribute in a local query interface schema of each member engine, converting the search request represented by the global query interface schema into a search request represented by the local query interface schema of each member engine; and distributing the search request represented by the local query interface schema of each member engine to each member search engine. Therefore, efficiency and accuracy of mobile search are greatly improved.

03-29-2012

20120079068

Method and system for providing user service data - A method and system for providing user service data are disclosed in the present invention. In the solution, a data processing unit receives a user service data request comprising a data request condition and template information, determines a user service data template according to the template information, queries the user service data matching the data request condition from a data storing unit, and generates the user service data matching the determined user service data template from the user service data matching the data request condition. In this way, the user service data template can be preset, and for a new template content and format information while requesting the user service data, the user service data template is generated directly and stored for later use, so that the pre-process of the user service data template is implemented actually and an existing user service data template is reusable. In order to request for the user service data based on an existing user service data template, it is only needed to provide a template identifier to the data processing unit, thereby reducing the number of bytes of a message, and avoiding the excessive occupancy of transport resources and network resources.

Method, System and Device for Implementing Inter-Network Short Message Service Intercommunication in Number Portability Service - A method and system for implementing inter-network SMS interworking in NP service are provided in the present invention. The method includes: before initiating a MT-SMS, if a first SMS Center of GSM network (G1-SMSC) judges that the destination user is not a user of local network, then it delivers a SRI message to an interworking SMSC; the interworking SMSC queries the NPDB in CDMA network for the home network of the destination MDN, and if the home network is a second GSM network, the interworking SMSC sends a SRI message carrying the destination MDN to the HLR in the second GSM network (G2-HLR); and G2-HLR sends a SRI response carrying the address information of the MSC where the destination user is located to G1-SMSC, and the G1-SMSC initiates a MT-SMS to the MSC where the destination user is located according to the address information.

06-14-2012

20120151239

Power-Saving Device for Universal Serial Bus Modem Apparatus and Method Thereof - A power-saving apparatus for universal serial bus (USB) modem equipment is disclosed in the present invention, which includes: a personal computer and USB Modem equipment. Accordingly, a power-saving method for USB Modem equipment is provided in the present invention, which includes: regularly detecting whether selective suspending is allowed, if not allowed, processing a received request from an application program, and if allowed, transmitting an instruction for entering the selective suspending state to the USB Modem equipment; after receiving the instruction for entering the selective suspending state, the USB Modem equipment entering the selective suspending state. Thus, the present invention can realize that the USB Modem equipment enters the power-saving state in the idle period and resumes the work state when receiving a service request.

06-14-2012

20120278455

ISSUING METHOD AND SYSTEM FOR CONFIGURATION INFORMATION - The disclosure discloses an issuing method and an issuing system for configuration information, wherein the method comprises: a configuration server issuing the modified configuration information to a peer node which serves as a bootstrap node in the Peer-to-Peer (P2P) network when it is determined that the configuration information of a P2P network is modified; and the bootstrap node issuing the configuration information to peer nodes other than the bootstrap node in the P2P network. By the disclosure, the configuration information of the peer nodes in a P2P network can synchronize with that of a configuration server in time.

11-01-2012

20120297431

NETWORK-WIDE STORING AND SCHEDULING METHOD AND SYSTEM FOR INTERNET PROTOCOL TELEVISION - This disclosure discloses a network-wide storing and scheduling method for IPTV, comprising steps of: adding, by live broadcast media code stream sending node of CDN, an identifier and a storage identifier into the media code stream data packet; transmitting, by the live broadcast media code stream sending node, the media code stream data packet to recording node; and according to the identifier and the storage identifier, storing, by the recording node, the media code stream data as a recording file. The method and system ensure aligned storage of media data of various recording nodes, optimizes the node service capability of CDN, and rationally utilizes network resources and node storage. This disclosure can provide better service quality of time-shifting TV and improve the watching experience of user.

11-22-2012

20120304166

BOOTUP METHOD AND DEVICE FOR APPLICATION PROGRAM IN MOBILE EQUIPMENT - A bootup device and method for an application program on a mobile equipment to improve the bootup speed of the application program on the mobile equipment. The bootup device has an application management module, that boots up a virtual machine module based on the application program to be run. A virtual machine module, loads codes of the application program and Just in Time (JIT) compilation results of a bootup process of the application program into a memory, search, in the JIT compilation results, for local JIT compiled codes corresponding to the bootup process code segment to be executed, and executes the found local JIT compiled codes when executing each bootup process code segment of the application program. A storage management module, store and reads the codes of the application program and the JIT compilation results obtained from the JIT compilation of the bootup process of the application program.

11-29-2012

20130007275

Managed Unit Device, Self-Optimization Method and System - A managed unit executes a self-optimization according to a self-optimization trigger rule. The self-optimization trigger rule relates to a self-optimization capability supported by the managed unit. The self-optimization capability supported by the managed unit includes any one of or any combination of a self-optimization type, a self-optimization trigger condition, a self-optimization objective, and a self-optimization monitoring cycle.

01-03-2013

20130138822

METHOD AND SYSTEM FOR ESTABLISHING MEDIA CHANNEL BASED ON RELAY - The disclosure discloses a method and a system for establishing a media channel based on relay. The method comprises: during a session negotiation process between a first User Equipment (UE) and a second UE, a media relay control server allocating a first service identifier and a second service identifier, transmitting the first service identifier to the first UE, transmitting the second service identifier to the second UE, and transmitting the first service identifier and the second service identifier to a media relay device; the media relay device receiving the service identifiers reported by the first UE and the second UE; the media relay device verifying, according to the first service identifier and the second identifier transmitted by the media relay control server, the service identifiers reported by the first UE and the second UE, and establishing a media channel between the first UE and the second UE if the verification is passed. Through this disclosure, the security of connections between network nodes is improved.

05-30-2013

20130140073

ROUTING STRUCTURE FOR CONNECTING SENSOR ELECTRODES USING BLACK ARTWORK ON TOUCH-PANEL GLASS - A structure and method is disclosed for a routing structure for connecting the transparent conductive oxide (TCO) electrodes of a touch-sensor panel to a touch controller while providing the requisite cross-over routing. Routing is confined to the border area of a single glass panel where there is no need for transparency. By applying the TCO electrodes to the glass surface, first, and then applying the non-conducting artwork layer above them, there is no need to extend the TCO electrodes above the glass surface and, thereby, subject these thin and brittle electrodes to mechanical stress. Instead, vias are positioned in the artwork then filled with conductive plugs. These provide the connectivity between the TCO electrodes and metal traces above them.

06-06-2013

20130148928

WATERPROOF OPTICAL FIBER CONNECTOR AND OUTDOOR COMMUNICATION DEVICE - A waterproof optical fibre connector includes a flange and a terminal connector. The terminal connector includes an outer casing, an inner casing, an optical fibre and a connecting component coupled with the fibre. The inner casing is tubular for housing the fibre and the connecting component. The outer casing is tubular for housing the inner casing. The inner casing includes a body and a waterproof clip connected to a back end of the body. The fibre passes through the clip. The tail of the inner wall of the outer casing tapers from the front to the back, pressing the clip inwards such that the clip and the fibre are fixed together. At least one first protrusion is provided on the inner surface of the front end of the sleeve of the flange, and the front end of the body of the inner casing bears against the first protrusion.

06-13-2013

20130289954

COMPUTING DEVICE AND METHOD FOR SIMULATING MEASUREMENT PATH OF PROBE OF MEASUREMENT MACHINE - In a method for simulating a measurement path of a probe using a computing device, a standard ball is constructed by meshing shell surface points. Measurement points from the surface of the standard ball are selected, and a coordinate value of each of the measurement points is calculated. The method calculates a coordinate value of each moving point of the probe, and inserts the coordinate value of each moving point between the two adjacent measurement points into the data array. The method simulates probe movement path of the probe according to coordinate values stored in the data array, and detects any collision between the probe and the standard ball at each point of the probe movement path. A probe calibration program is generated according to the probe movement path when no collisions with the standard ball is found.

10-31-2013

20130304888

METHOD AND APPARATUS FOR REALIZING LOAD BALANCE IN DISTRIBUTED HASH TABLE NETWORK - The disclosure discloses a method and an apparatus for realizing load balance in a DHT network, wherein the method comprises: determining the quantity Z of first virtual identifiers according to the node planning of the DHT network and a preset threshold of load unbalance degree, wherein Z is a natural number; equally dividing the whole load space of the DHT network into Z portions, and each portion of the load space is respectively identified by a different first virtual identifier; allocating the Z first virtual identifiers to each node according to the ability of each node so that each node is in charge of the load space corresponding to the first virtual identifier allocated to the node. The disclosure can reduce workload for managing and transferring virtual identifiers while realizing data storage load balance in the DHT network.

11-14-2013

20130339522

Managed Unit Device, Self-Optimization Method and System - A managed unit executes a self-optimization according to a self-optimization trigger rule. The self-optimization trigger rule relates to a self-optimization capability supported by the managed unit. The self-optimization capability supported by the managed unit includes any one of or any combination of a self-optimization type, a self-optimization trigger condition, a self-optimization objective, and a self-optimization monitoring cycle.

12-19-2013

20140043773

LED DISPLAY SCREEN CASE - An LED display screen case includes a module, a HUB plate, a case frame, a power supply and a receiving card. One side of the HUB plate is connected with the module by a plug A and an interface A in a plugging mode. The other side of the HUB plate is connected with the receiving card by a plug B and an interface B in the plugging mode. A through hole is formed at a position corresponding to the plug B on the case frame. The plug B passes through the through hole. The receiving card and the HUB plate are connected by the plug B and the interface B in the plugging mode and fixed to the two sides of the case frame. This kind of connection type reduces the space inside the case for accommodating devices, and also ensures the good radiating effect of the case.

02-13-2014

20140052948

METHOD AND DEVICE FOR IMPLEMENTING MEMORY MIGRATION - Disclosed are a method and device for implementing memory migration, which relate to computer technology and are invented for solving the problem that the existing operating process for memory migration is relatively complicated. The technical solution provided in the embodiments of the present application includes: the basic input-output system of a computer migrating the data in the memory to be migrated to a first unavailable memory in the operating system of the computer when migrating the memory to be migrated and the basic input-output system storing the mapping relationship between the memory to be migrated and the physical address of the first unavailable memory. The embodiments of the present application can be applied to ordinary computer systems and computer systems under the NUMA architecture.

02-20-2014

20140101240

Method and system for acquiring user content - A method and a system for acquiring user contents are disclosed, which relates to the field of network communications. The method includes: a first terminal transmits a content acquisition request to a server, wherein the content acquisition request comprises at least one of geographic information and a user identification; the server searches a content information repository stored in the server for content information matching the content acquisition request and pushing the searched content information to the first terminal, wherein the content information repository is issued by a second terminal and stored in the server, and each piece of the content information comprises at least location information and a user identification of the second terminal. The system comprises: a first terminal and a server. The method and system as disclosed may be capable of providing a user with valuable user contents from a large amount of user contents in the network.

04-10-2014

20140116974

FRAME WITH CONNECTING MEMBER FOR CONNECTING BARS OF THE FRAME - A modular frame includes a number of bars connected end by end, and a number of connecting members connecting every two adjacent bars. Each bar includes an outer sidewall and an inner sidewall parallel to the outer sidewall. A first plate and a second plate are connected between the outer sidewall and the inner sidewall. The first plate, the second plate, the outer sidewall, and the inner sidewall bound a receiving space. Each connecting member includes two connecting plates received in adjacent receiving spaces. Each connecting plate defines a groove to engage with a locking block extending from an interior sidewall of each bar.

05-01-2014

20140169308

Data Transmission Method and Apparatus - A data transmission method and apparatus are disclosed. A 3G AE and a 3G RE are deployed between a sender device and a receiver device, M channels are established between the 3G AE and the 3G RE, and M is larger than or equal to 2. The method includes that, the 3G AE encapsulates data sent by the sender device into N PDUs, and transmits the N PDUs to the 3G RE through the M channels between the 3G AE and the 3G RE; and the 3G RE restores the received PDUs to the data sent by the sender device, and sends the data to the receiver device; where N is larger than or equal to 2, and equal to or different from M.

06-19-2014

20140257995

METHOD, DEVICE, AND SYSTEM FOR PLAYING VIDEO ADVERTISEMENT - Embodiments of the present invention provide a method, a device, and a system for playing a video advertisement. The method includes: receiving at least one of image feature data, a subtitle text, and an audio text of a video file sent by a client; obtaining a feature fusion result vector of the video file according to the at least one of the image feature data, subtitle text, and audio text of the video file; performing similarity matching calculation on feature fusion result vectors of advertisement files to be placed and the feature fusion result vector of the video file and determining one or more advertisement files of maximum similarity as a matching advertisement file; and sending the matching advertisement file to the client. With the embodiments of the present invention, an advertisement played on a client is more adaptable to a scene being played on the client.

09-11-2014

20140258128

Method for managing fund security and mobile terminal - The disclosure discloses a method for managing fund security, including that: a fund-security controlling strategy is generated according to a preset fund-security-controlling-strategy configuring file; and permission of using a paid function by an application is controlled according to a strategy controlling permission of using a paid function in the fund-security controlling strategy when it is detected that the application is about to use a paid function defined in the fund-security controlling strategy. The disclosure also provides a mobile terminal. With the disclosure, it is possible to control permission to a malicious application in a mobile terminal to use a paid function in the mobile terminal, thereby prevent loss of fund of the mobile terminal.

09-11-2014

20140294347

PACKAGING AN ARCUATE PLANAR LIGHTWAVE CIRCUIT - A package for an arcuate planar lightwave circuit (PLC) chip includes a heater plate coupled to a base by a thick and soft support layer. The arcuate PLC is attached to the heater plate by soft adhesive. A hard adhesive is applied to a multi-waveguide end of the arcuate PLC, to additionally strengthen the attachment of the arcuate PLC to the heater plate. The structure allows the mechanical stress due to fiber pull/shock/vibration to be dissipated in the support layer without introducing large wavelength shifts in the arcuate PLC. The support layer also serves as a heat insulator, facilitating uniform heating of the arcuate PLC.

10-02-2014

20140344412

METHOD, APPARATUS, AND SYSTEM OF OPENING A WEB PAGE - The present disclosure has disclosed a method, an apparatus, and a system of opening a web page and belongs to the technical field of the Internet. Said method comprises: A binding relationship among terminals stored in advance in a server; said server receives the web page information of a target web page sent by the first terminal; according to the binding relationship among terminals stored in advance, said server determines the second terminal, which has a binding relationship with said first terminal; according to the web page information of said target web page, said server sends a notice of web page information to said second terminal so that said second terminal opens said target web page according to said notice of web page information.

11-20-2014

20140354240

ELECTRIC AUTOMOBILE AND DISCHARGING DEVICE THEREOF - A discharging apparatus for an electric vehicle and an electric vehicle are provided. The discharging apparatus comprises: an AC charging interface, connected with a charging pile and configured to transmit an AC to a power grid via the charging pile; an instrument, configured to send a discharging preparation instruction; a controller, configured to detect whether the AC charging interface is connected with the charging pile after receiving the discharging preparation instruction, and to detect whether there is a PWM wave with a predetermined voltage in the controller, and if there is a PWM wave with a predetermined voltage in the controller, to switch to an external discharging mode; a battery manager, configured to control an external discharging circuit in a high-voltage distribution box of the electric vehicle to be connected after the controller switches to the external discharging mode; a power battery, connected with the high-voltage distribution box.

12-04-2014

20150015207

ELECTRIC AUTOMOBILE AND DISCHARGING DEVICE THEREOF - A discharging apparatus for an electric vehicle and an electric vehicle are provided. The discharging apparatus comprises: an AC charging interface; a charging connection device, having a first terminal connected with the AC charging interface and a second terminal connected with an exterior equipment, and configured to transmit an AC output from the AC charging interface to the exterior equipment; an instrument, configured to send a discharging preparation instruction; a controller, configured to detect whether the charging connection device is connected with the AC charging interface, and if yes, to switch to an external discharging mode; a battery manager, configured to control an external discharging circuit in a high-voltage distribution box of the electric vehicle to be connected after the controller switches to the external discharging mode; a power battery, connected with the high-voltage distribution box and configured to provide a DC via the external discharging circuit.